A WIDEBAND SQUARE SPIRAL ANTENNA FOR MULTIPLE AIRBORNE APPLICATIONS

Abstract

In this article, we designed a wideband square spiral antenna with an impedance matching part that operated between 1500 – 5500 MHz (covering L, S, and C bands) for airborne uses such as Aeronautical Mobile Satellite Service, radar altimeters, Microwave Landing System, and airborne weather radars. The impedance matching part was a designed wideband balun. We obtained simulation results for scattering parameters, radiation patterns, antenna and system input impedances and gain values. The results confirmed that the antenna showed good matching and radiation characteristics within the mentioned frequency range.

Keywords

• Airborne Application
• Balun
• Square Spiral Antenna
• Wideband Antenna
• Wideband Impedance Matching